I used to believe that young boys grow hair in their mouth when they get older and their voices start to lower.
Because in the Dutch language we call that "to get a beard in your throat". I checked it with my cousin but I couldn't see any hair growing in the back of his mouth...
A childhood belief about hair

others believed things like this
- I believed that if you ate a piece of your own hair, a new strand of hair would grow on your head.— Ryo
- I used to believe that if i cut of my Barbie dolls hair that it would grow back.— Zena
- I used to believe that if I cut my dolls hair it would grow back just like mine did after a haircut. — diamond girl
- I used to think that everybody's hair was black and if you had blond hair, you dyed your hair.— ~_~CoolKid93_~_
- i thought that soft drinks in America would explode in a person's mouth bocause they call it 'pop'.— Aussie!
- I used to hold my hand over my hair whenever i left the house and it was windy incase my hair blew away— lisa